Sealey ak303imp tap and die set split dies imperial 45 piece sealey ak303imp p this 45 piece tap and die set from sealey includes imperial coarse and fine sizes also includes sliding jaw type tap wrench and t bar type tap wrench together with steel die holder with knurled screws p p contents taps and dies national fine 1 4in x 28 5 16in x 24 3 8in x 24 7 16in x 20 1 2in x 20 9 16in x 18 5 8in x 18 3 4in x 16 7 8in x 14 1in x 14 national course 1 4in x 20 5 16in x 18 3